Construction block



FIG. 1 is a perspective view from the lower right side of the construction block in accordance with my design;

FIG. 2 is a perspective view from the upper left side of the construction block in accordance with my design;

FIG. 3 is a perspective view from the right side of the construction block in accordance with my design;

FIG. 4 is a top view of the construction block in accordance with my design;

FIG. 5 is a bottom view of the construction block in accordance with my design;

FIG. 6 is a front view of the construction block in accordance with my design;

FIG. 7 is a back view of the construction block in accordance with my design;

FIG. 8 is a right side view of the construction block in accordance with my design; and,

FIG. 9 is a left side view of the construction block in accordance with my design. 

CLAIM The ornamental design for a construction block, as shown and described. 